In recent decades, the topic of gender blindness is increasingly gaining scholarly attention. Even in fields that do not commonly engage with gender studies, such as medicine, engineering, and computer sciences, gender blindness has been recognized as a factor that possibly biases research outcomes, and thus has the potential to limit the validity of findings. Motivated by this recognition, this paper explores the prevalence of gender blindness in political science, and its implications for research outcomes. We ask two questions. First, how prevalent is gender blindness today in mainstream political science research? Second, how might gender sensitive analysis change outcomes of political science research? We answer these questions in two stages. First, we assess the prevalence of gender blindness in all articles published in the American Journal of Political Science (AJPS) in 2018 and 2019 (N=114). Next, to demonstrate if and how outcomes and theory are affected when gender sensitive analysis is applied, we select a number of studies from the years under observation and reproduce their results with the addition of gender sensitive analysis. Our findings indicate that gender blindness is very prevalent in political science research and is indeed affecting outcomes. Men and women frequently respond differently to political phenomena, but this is often missed in current political science research. Accounting for gender could yield more accurate results, alter theory, and offer a more refined understanding of political behavior and phenomena.